Can't Shift to 2nd During a Pull
 

As title says; what bushing do you think is most likely responsible for this? During heavy load, I am unable to shift from 1st to second. This only happens during shifts made during full acceleration and does not affect any other gears. I want to replace whatever bushing may be most responsible, but the car otherwise seems fine. Could it be a shift or transmission mount? Maybe the motor mounts (Though the motor mounts aren't showing particular play, neither is anything else on the car).

I'd normally blame motor mounts, but that's because I've always driven heavy 90s cars (3000GT VR4) and the motor mounts are subjected to much more age and shock loading.

Might need to double clutch?

I'm sorry, you deserve a serious answer.

I know what you're experiencing. If you're a fast shifter, it'll grind. Whiteline's transmission mount insert will help. New, quality, synthetic transmission fluid should help.

Thank you Apex, I have Motul300 waiting to go in. As cheap as the bushing is I'll probably pick it up anyway

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Np. The Motul should help keep things smooth. If you're interested in improving your shifter further, look into the Perrin rear shifter bushing and MTec shifter springs. And if you want to tighten up the drive train, get Megan Racing or STi motor mounts, Whiteline diff inserts, and Whiteline subframe inserts. All really good stuff. Search around, you'll see others who have said the same

I was considering a kart boy short throw with the bushing. Had an e36 with the z3 transmission and shifter, I miss the tight concise shifting but I don't want binding.

Are STI motor mounts a swap? I've never researched it. I'll look into the other stuff, I try not to over tool the car with upgrades beyond my driving but I value driver feel more than anything. I appreciate the input and will spend more hours researching

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Is everything stock?

The Kartboy SS could be worth it. Never had interest in getting a STS for this car, but I would definitely look into whether they rattle or not before buying one.

And yeah, the STi motor mounts are direct bolt-in.

I hear you on increasing the feel of the car; I'm all about that. I think better tires would improve that area of the car the most, if you're still on stock tires/other all-seasons.

I think it's easy to "overmod" a car so I would really think things out and research as much as possible while questioning whether a given mod is really what you want and also thinking about the cons and not just the pros. It seems like you're already doing that though so that's good.

Falken Azenis RT-615K tires, uel headers and a tune, that's it.

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Yeah I did tires, rattle in the shifter is something I never would have considered, good tip!!!

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In for solution, as I'm having a similar problem. I can go into second but it's difficult. I want snickety snick type of shifting action.

I've had no shifting problems at all with my 17 BRZ. The shifting in my old 07 Scion tC was becoming a problem, but at almost 3,000 miles not a single mis shift or grind or anything. I stalled once when I thought I was in first but actually third, but thats it. The car shifts super easy all the time, but the smoothest actually seems to be higher up in the RPM's under acceleration.

If I go from a dig full throttle and slam it into second as fast as I possibly can, I grind. Car is stock. Do it slightly slower and no grind.

I don't get grinding, it just locks me out because of excessive movement from load I'm assuming

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